[gnome-games] Catch or declare forgotten errors

[Adrien Plazas <aplazas src gnome org>]

commit b7c7f0fbcd15170208d9e1e3fd2f72e88a8e42c4
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sat Jul 22 08:56:39 2017 +0200

    Catch or declare forgotten errors
    
    This fixes some compile time warnings.

 src/database/database-uri-iterator.vala |   12 ++++++++++--
 src/database/database.vala              |    2 +-
 src/retro/retro-runner.vala             |   18 +++++++++++++++---
 src/ui/application.vala                 |   10 ++++++++--
 4 files changed, 34 insertions(+), 8 deletions(-)
---
diff --git a/src/database/database-uri-iterator.vala b/src/database/database-uri-iterator.vala
index 83928a8..ea05064 100644
--- a/src/database/database-uri-iterator.vala
+++ b/src/database/database-uri-iterator.vala
@@ -5,11 +5,16 @@ private class Games.DatabaseUriIterator : Object, UriIterator {
                SELECT uri FROM game_resources;
        """;
 
-       private Sqlite.Statement statement;
+       private Sqlite.Statement? statement;
        private Uri? uri;
 
        internal DatabaseUriIterator (Sqlite.Database database) {
-               statement = Database.prepare (database, SELECT_GAME_RESOURCE_QUERY);
+               try {
+                       statement = Database.prepare (database, SELECT_GAME_RESOURCE_QUERY);
+               }
+               catch (Error e) {
+                       debug (e.message);
+               }
        }
 
        public new Uri? get () {
@@ -17,6 +22,9 @@ private class Games.DatabaseUriIterator : Object, UriIterator {
        }
 
        public bool next () {
+               if (statement == null)
+                       return false;
+
                if (statement.step () != Sqlite.ROW)
                        return false;
 
diff --git a/src/database/database.vala b/src/database/database.vala
index 1cc0d3a..ee9a54c 100644
--- a/src/database/database.vala
+++ b/src/database/database.vala
@@ -37,7 +37,7 @@ private class Games.Database : Object {
                        throw new DatabaseError.EXECUTION_FAILED ("Execution failed.");
        }
 
-       public bool has_uri (Uri uri) {
+       public bool has_uri (Uri uri) throws Error {
                var statement = prepare (database, HAS_URI_QUERY);
 
                bind_text (statement, "$URI", uri.to_string ());
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index bc5d67d..adeec2d 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -313,7 +313,14 @@ public class Games.RetroRunner : Object, Runner {
                if (!is_initialized)
                        return;
 
-               core.set_current_media (media_set.selected_media_number);
+               try {
+                       core.set_current_media (media_set.selected_media_number);
+               }
+               catch (Error e) {
+                       debug (e.message);
+
+                       return;
+               }
 
                var media_number = media_set.selected_media_number;
 
@@ -331,9 +338,14 @@ public class Games.RetroRunner : Object, Runner {
                if (uris.length == 0)
                        return;
 
-               var uri = uris[0];
+               try {
+                       core.set_current_media (media_set.selected_media_number);
+               }
+               catch (Error e) {
+                       debug (e.message);
 
-               core.set_current_media (media_set.selected_media_number);
+                       return;
+               }
 
                try {
                        save_media_data ();
diff --git a/src/ui/application.vala b/src/ui/application.vala
index ac80e07..218e3b7 100644
--- a/src/ui/application.vala
+++ b/src/ui/application.vala
@@ -279,8 +279,14 @@ public class Games.Application : Gtk.Application {
        }
 
        private async void add_cached_uri (Uri uri) {
-               if (database != null)
-                       database.add_uri (uri);
+               try {
+                       if (database != null)
+                                       database.add_uri (uri);
+               }
+               catch (Error e) {
+                       debug (e.message);
+               }
+
                yield game_collection.add_uri (uri);
        }